Main shaft bearing water cooling structure
By designing the circulating waterway and sealing structure on the spindle bearing, effective cooling of the main bearing is achieved, and the problem that traditional air-cooled structures cannot reduce the bearing temperature is solved, and a low-cost and easy-to-process water-cooling solution is provided.
Patent Information
- Application Number
- CN202421323762.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-06-11
AI Technical Summary
The traditional air-cooled structure cannot effectively reduce the temperature of the main bearing in a high temperature environment, resulting in damage and shutdown of the bearing. A water-cooled structure with low cost and low processing difficulty is needed to solve this problem.
A water-cooled structure of the spindle bearing is designed, including setting up a circulating water channel on the bearing seat, the left end cover and the right end cover, and the circulating flow of cooling water is achieved through the through through holes and arc grooves, and connecting the bearings with water inlet holes and return water holes. Through holes on the seat, combined with sealing ring grooves and sealing rings to ensure sealing and achieve cooling effect.
The water-cooled structure can effectively reduce the temperature of the bearing and achieve reliable cooling effect. It has a simple structure and low processing difficulty, avoiding the high cost and complex processing technology of traditional water-cooled structures.
Smart Images
Figure CN222315709U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of silicon rod cutting equipment and relates to a main shaft bearing water cooling structure. Background Art
[0002] Diamond wire slicer is a special precision equipment for silicon wafer cutting in solar photovoltaic equipment. It is the equipment with the highest production cost and the highest technical difficulty in the front-end process of solar cells (crystal pulling, squaring, slicing). The slicer is a device used to cut silicon rods into thin silicon wafers. A large number of diamond wires are densely wound on the rubber-coated guide rollers with grooves. The silicon rods are fed in a direction orthogonal to the diamond wires. The spindle drives the rubber-coated guide rollers to rotate and then drives the diamond wires to move and cut the silicon rods. Due to the high spindle speed, the bearings generate a lot of heat. If the bearings run in a high temperature environment for a long time, it will cause bearing damage and shutdown. Ordinary air cooling structure can no longer effectively reduce the bearing temperature, so water cooling is needed to reduce the bearing temperature. The traditional water cooling structure uses a copper sleeve to process spiral grooves as water channels. This is costly and has complex processing technology. For this reason, our company has designed a cooling water circulation structure with a simple structure and low processing difficulty. Summary of the invention
[0003] In view of the above problems, the utility model provides a water cooling structure for a main shaft bearing. The water cooling structure has low processing difficulty and can effectively reduce the bearing temperature during operation.
[0004] According to the technical solution of the utility model: a spindle bearing water cooling structure includes a bearing seat, the spindle is rotatably supported on the bearing seat through a bearing assembly, the right end of the bearing seat is sealed and connected to the right end cover, and the left end of the bearing seat is sealed and connected to the left end cover;
[0005] The invention is characterized in that: the bearing seat, the left end cover and the right end cover are provided with a circulating water channel, the circulating water channel includes 2N through holes set on the bearing seat, N arc grooves set on the inner end surface of the left end cover, and N-1 arc grooves set on the inner end surface of the right end cover, and a water inlet hole and a water return hole are set between the first arc groove and the last arc groove in the clockwise direction on the right end cover, N is a natural number, and N≥1;
[0006] The water inlet hole and the water return hole are respectively axially connected with the water inlet hole and the water return hole on the bearing seat, so that each arc groove on the right end cover is sealed and connected with two adjacent through holes on the bearing seat in sequence;
[0007] The two adjacent circular arc grooves on the left end cover are respectively connected to the water inlet hole and the water return hole on the bearing seat, and the circular arc groove on the left end cover seals and connects the two adjacent through holes on the bearing seat in sequence.
[0008] As a further improvement of the utility model, the left end cover and the right end cover are coaxially provided with a first sealing ring groove and a second sealing ring groove, respectively, and the arc groove is placed between the corresponding first sealing ring groove and the second sealing ring groove;
[0009] A first sealing ring is arranged in the first sealing ring groove, and a second sealing ring is arranged in the second sealing ring groove.
[0010] As a further improvement of the present invention, the bearing assembly includes bearing groups respectively arranged at two axial ends of the inner hole of the bearing seat, and the two bearing groups are spaced apart from each other by a spacer sleeve.
[0011] As a further improvement of the present invention, the depth of the arc groove is 10 mm.
[0012] The technical effect of the utility model is that the product structure of the utility model is simple, reasonable and ingenious, and by arranging a water cooling structure on the bearing seat, reliable water cooling operation can be achieved when the bearing is working. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the cooling water circulation structure of the utility model.
[0014] Figure 2 Schematic diagram of the bearing seat cooling water channel structure.
[0015] Figure 3 for Figure 2 AA section view.
[0016] Figure 4 Schematic diagram of the cooling water flow channel of the left end cover.
[0017] Figure 5 for Figure 4 BB section view.
[0018] Figure 6 Schematic diagram of the cooling water flow channel of the right end cover.
[0019] Figure 7 for Figure 6 CC section view.
[0020] Figure 8 It is a partial cross-sectional view of the utility model. DETAILED DESCRIPTION
[0021] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings.
[0022] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. The described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0023] Figure 1-8 The bearing assembly includes 100-left end cover, 200-bearing seat, through hole 210, 300-right end cover, 400-spindle, 500-first sealing ring, 600-second sealing ring, 700-bearing assembly, first sealing ring groove 800, second sealing ring groove 900, etc.
[0024] like Figure 1-8 As shown, the utility model is a water-cooled structure of a main shaft bearing, including a bearing seat 200, a main shaft 400 rotatably supported in the inner hole of the bearing seat 200 through a bearing assembly 700, the right end of the bearing seat 200 is sealed to the right end cover 300, and the left end of the bearing seat 200 is sealed to the left end cover 100. The bearing assembly 700 includes bearing groups respectively arranged at the axial ends of the inner hole of the bearing seat 200, and the two bearing groups are spaced apart from each other by a spacer sleeve. The bearing sleeve is mounted on the main shaft 400, and when working, the bearing rotates at high speed and the heat is transmitted to the bearing seat 200.
[0025] The bearing seat 200, the left end cover 100 and the right end cover 300 are provided with circulating water channels to cool the heat generated by the high-speed rotation of the bearing, thereby reducing the bearing temperature.
[0026] The circulating water channel includes 2N through holes 210 provided on the bearing seat 200, N arc grooves provided on the inner end surface of the left end cover 100, N-1 arc grooves provided on the inner end surface of the right end cover 300, and a water inlet hole 310 and a water return hole 320 are provided between the first arc groove and the last arc groove in the clockwise direction on the right end cover 300, N is a natural number, and N≥1. The depth of the arc groove is 10 mm.
[0027] In the present application, N is 10, that is, 20 through holes are processed on the end face of the bearing seat 200 as cooling water channels, and the holes penetrate from the left end face to the right end face. Figure 2 , 3 As shown, 20 through holes 210 are provided through the bearing seat 200, and the 20 through holes are marked in sequence from 1 to 20. Figure 4 , 5 As shown, 10 arc grooves are provided on the left end cover 100, and each arc groove corresponds to two through holes 210 on the bearing seat 200. Figure 6 ,7 As shown, the right end cover 300 is provided with 9 arc grooves and two water inlet holes 310 and water return holes 320, each of which corresponds to each other. When the bearing seat 200 is connected with the left end cover 100 and the right end cover 300, the bearing seat 200 corresponds to the numbers on the left end cover 100 and the right end cover 300 one by one.
[0028] In order to facilitate the description of docking with the through hole 210 on the bearing seat 200, the arc grooves on the inner surface of the right end cover 300 and the inner end surfaces of the water inlet hole 310 and the water return hole 320 are numbered 1 to 20 in sequence. The inner end of the water inlet hole 310 is numbered 1, the inner end of the water return hole 320 is numbered 20, and the remaining arc grooves are marked with two numbers, each of which covers two through holes 210 on the bearing seat 200.
[0029] Furthermore, the water inlet hole 310 and the water return hole 320 are axially connected to the water inlet hole and the water return hole on the bearing seat 200 respectively, so that each arc groove on the right end cover 300 is sealed and connected to two adjacent through holes on the bearing seat 200 in sequence.
[0030] The two adjacent arc grooves on the left end cover 100 are respectively connected to the water inlet hole and the water return hole on the bearing seat 200, and the arc groove on the left end cover 100 seals and connects the two adjacent through holes on the bearing seat 200 in turn.
[0031] The left end cover 100 and the right end cover 300 are coaxially provided with a first sealing ring groove 800 and a second sealing ring groove 900 respectively, and the arc groove is disposed between the corresponding first sealing ring groove 800 and the second sealing ring groove 900.
[0032] The first sealing ring 500 is disposed in the first sealing ring groove 800 , and the second sealing ring 600 is disposed in the second sealing ring groove 900 .
[0033] It can be understood that the inner end surface of the left end cover 100 is processed with ten arc grooves with a depth of 10 mm, corresponding to the through holes numbered 1 to 20 on the bearing seat 200, as the head-to-tail through-flow passage; the inner end surface of the right end cover 300 is processed with nine arc grooves with a depth of 10 mm, corresponding to the through holes numbered 2 to 19 on the bearing seat 200, as the head-to-tail through-flow passage. The water inlet hole 310 and the water return hole 320 of the right end cover 300 correspond to the through holes numbered 1 and 2 on the bearing seat 200, respectively.
[0034] During assembly, the water inlet hole 310 of the right end cover 300 is connected to the cooling water channel formed by the through hole numbered 1 on the bearing seat 200, and the other axial end of the cooling water channel corresponds to the arc groove numbered 1 on the left end cover 100; at this time, the cooling water enters from the right end cover 300 and then flows through the through hole numbered 1 of the bearing seat 200 to the corresponding arc groove on the left end cover 100, and then returns to the through hole numbered 2 on the bearing seat 200, flows to the numbered 2 of the first arc groove clockwise of the right end cover 300, and then flows to the numbered 3 of the first arc groove, and then flows to the through hole numbered 3 on the bearing seat 200, and then flows to the numbered 3 of the corresponding arc groove of the left end cover 100... Each arc groove of the left end cover 100 and the right end cover 300 corresponds to the through hole of the bearing seat 200 one by one, and so on, until it finally flows to the bearing seat 200 through the numbered 20 of the arc groove of the left end cover 100 The through hole numbered 20 enters the water return hole 320 of the right end cover 300, thereby forming 20 annular water channels.
[0035] The right end cover 300 and the left end cover 100 are connected to the bearing seat 200 by screws. In order to prevent cooling water from entering the bearing, a first sealing ring 500 and a second sealing ring 600 are respectively provided on both sides of the arc groove of the left end cover 100 and the right end cover 300.
[0036] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to examples, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A spindle bearing water cooling structure, comprising a bearing seat (200), a spindle (400) rotatably supported on the bearing seat (200) via a bearing assembly (700), the right end of the bearing seat (200) being sealedly connected to a right end cover (300), and the left end of the bearing seat (200) being sealedly connected to a left end cover (100); Features: The bearing seat (200), the left end cover (100), and the right end cover (300) are provided with a circulating water channel, the circulating water channel comprising 2N through holes penetrating the bearing seat (200), N arc grooves provided on the inner end surface of the left end cover (100), and N-1 arc grooves provided on the inner end surface of the right end cover (300), and a water inlet hole (310) and a water return hole (320) are provided between the first arc groove and the last arc groove in the clockwise direction on the right end cover (300), N being a natural number, and N≥1; The water inlet hole (310) and the water return hole (320) are respectively axially connected to the water inlet hole and the water return hole on the bearing seat (200), so that each arc groove on the right end cover (300) is sealed and connected to two adjacent through holes on the bearing seat (200) in sequence; The two adjacent circular arc grooves on the left end cover (100) are respectively connected to the water inlet hole and the water return hole on the bearing seat (200), and the circular arc groove on the left end cover (100) is sealed and connected to the two adjacent through holes on the bearing seat (200) in sequence.
2. The spindle bearing water cooling structure according to claim 1, characterized in that: The left end cover (100) and the right end cover (300) are coaxially provided with a first sealing ring groove (800) and a second sealing ring groove (900), respectively, and the arc groove is arranged between the corresponding first sealing ring groove (800) and the second sealing ring groove (900); A first sealing ring (500) is disposed in the first sealing ring groove (800), and a second sealing ring (600) is disposed in the second sealing ring groove (900).
3. The spindle bearing water cooling structure according to claim 1, characterized in that: The bearing assembly (700) comprises bearing groups respectively arranged at two axial ends of the inner hole of the bearing seat (200), and the two bearing groups are spaced apart from each other by a spacer sleeve.
4. The spindle bearing water cooling structure according to claim 1, characterized in that: The depth of the arc groove is 10 mm.